package main

import "fmt"

func main() {
	var season int
	switch {
	case season >= 1 && season < 4:
		fmt.Println("season is spring")
	case season > 3 && season <= 6:
		fmt.Println("season is summer")
	case season > 6 && season <= 9:
		fmt.Println("season is autum")
	case season > 9 && season <= 12:
		fmt.Println("season is winnter")
	default:
		fmt.Println("no season")
	}
}
